Variable infectivity and conserved engagement in cell-to-cell viral transfer by HIV-1 Env from Clade B transmitted founder clones.

abstract：:We describe the in vitro selection and characterisation of virus derived from B/Beijing/1/87 passaged in the presence of zanamivir. During zanamivir passage, the phenotype of virus isolates was either drug dependent or drug resistant in plaque reduction assays. The susceptibility of the neuraminidase of the drug-depen...

journal_title：Virology

authors： Barnett JM,Cadman A,Burrell FM,Madar SH,Lewis AP,Tisdale M,Bethell R

更新日期：1999-12-20 00:00:00

abstract：:The reactivates of human sera with uninduced and phorbol ester (TPA)-induced human herpesvirus-8 (HHV-8)-infected BCBL-1 cells were examined by immunofluorescence assay (IFA) and by radioimmunoprecipitation reactions (RIP). The seroprevalence of HHV-8 infections is low in the United States general population and only ...

journal_title：Virology

authors： Chandran B,Smith MS,Koelle DM,Corey L,Horvat R,Goldstein E

更新日期：1998-03-30 00:00:00

abstract：:A previous study showed that an Autographa californica multicapsid nuclear polyhedrosis virus (AcMNPV) 25K mutant produced less polyhedrin protein than wild-type (Jarvis et al., J. Virol. 66, 6903-6911, 1992). In this study, the role of the 25K gene product (AcMNPV ORF 61) in baculovirus gene expression was further in...

journal_title：Virology

authors： Harrison RL,Jarvis DL,Summers MD

更新日期：1996-12-01 00:00:00

abstract：:The LP-BM5 retrovirus, a complex containing ecotropic helper, recombinant MCF, and defective retroviruses, causes an immunodeficiency-termed mouse AIDS (MAIDS). Many disease features of MAIDS resemble those of AIDS, including terminal B cell lymphomas. Previously we generated from MAIDS-susceptible C57BL/6 mice cytoly...

journal_title：Virology

authors： Green WR,Crassi KM,Schwarz DA,Green KA

更新日期：1994-04-01 00:00:00

abstract：:Monoclonal antibodies have been produced and used to map the functional topography of the surface proteins of rhesus rotavirus (RRV) that mediate viral neutralization. Ten monoclonal antibodies directed to VP7 were studied in neutralization assays and competitive binding studies. A large neutralization domain with sev...

journal_title：Virology

authors： Shaw RD,Vo PT,Offit PA,Coulson BS,Greenberg HB

更新日期：1986-12-01 00:00:00

abstract：:The heptauridine tract at each gene end and intergenic region (IGR) at the gene junctions of vesicular stomatitis virus (VSV) have effects on synthesis of the downstream mRNA, independent of their respective roles in termination of the upstream mRNA. To investigate the role of the U tract and the IGR in downstream gen...

journal_title：Virology

authors： Hinzman EE,Barr JN,Wertz GW

更新日期：2008-10-25 00:00:00

abstract：:The human papillomavirus type 8 (HPV8) is associated with skin cancer development. The goal of this study was to investigate the effects of HPV8 oncoproteins on cellular gene expression and the identification of key regulators. We performed affymetrix microarray analyses to identify differentially expressed genes and ...

journal_title：Virology

authors： Kirschberg M,Heuser S,Syed AS,Steger G,Majewski S,Hufbauer M,Akgül B

更新日期：2019-09-01 00:00:00

abstract：:Begomoviruses (family Geminiviridae) are responsible for many economically important crop diseases worldwide. The majority of these diseases are caused by bipartite begomovirus infections, although a rapidly growing number of diseases of the Old World are associated with monopartite begomoviruses. With the exception o...

journal_title：Virology

authors： Briddon RW,Stanley J

更新日期：2006-01-05 00:00:00

abstract：:The oncogenic potential of human papillomavirus type 18 which is found in a significant number of cervical and penile cancer biopsies was tested in primary human keratinocytes derived from neonatal foreskin. Viral DNA and a gene for resistance to neomycin were introduced into these cells by calcium phosphate transfect...

journal_title：Virology

authors： Kaur P,McDougall JK

更新日期：1989-11-01 00:00:00

abstract：:Dengue-2 virus strains from different locations were compared by T1-RNAse-resistant oligonucleotide fingerprinting and antigen signature analysis. The latter technique involved construction of radioimmunoassays using monoclonal antibodies that recognize nine distinct dengue-2 type-specific and flavivirus cross-reactiv...

journal_title：Virology

authors： Monath TP,Wands JR,Hill LJ,Brown NV,Marciniak RA,Wong MA,Gentry MK,Burke DS,Grant JA,Trent DW

更新日期：1986-10-30 00:00:00

abstract：:Adenoviruses (Ads) infect hosts from all vertebrate species and have been investigated as vaccine vectors. We report here near-atomic structures of two bovine Ad type 3 (BAd3) intermediates obtained by cryo-electron microscopy. A comparison between the two intermediate structures reveals that the differences are local...

journal_title：Virology

authors： Cheng L,Huang X,Li X,Xiong W,Sun W,Yang C,Zhang K,Wang Y,Liu H,Huang X,Ji G,Sun F,Zheng C,Zhu P

更新日期：2014-02-01 00:00:00

abstract：:Mice are used as models for western equine encephalitis virus (WEEV) infection, but high mortality is generally only seen with intracranial or intranasal challenge, while peripheral inoculation results in approximately 50% mortality and is not dose-dependent. Hamsters were therefore studied as a model for WEEV infecti...

journal_title：Virology

authors： Julander JG,Siddharthan V,Blatt LM,Schafer K,Sidwell RW,Morrey JD

更新日期：2007-04-10 00:00:00

abstract：:The influenza RNA polymerase is known to be important in pathogenicity and adaptation of avian influenza viruses to mammalian hosts. However, the molecular mechanisms responsible are only partly understood. Here we investigated the role of the polymerase in two different, closely related, H5N1 influenza viruses - a hi...

journal_title：Virology

authors： Leung BW,Chen H,Brownlee GG

更新日期：2010-05-25 00:00:00

abstract：:The conserved nature of the epitopes of the four broadly neutralizing antibodies (BNAbs), b12, 2G12, 2F5, and 4E10, may imply that the sensitivity of HIV-1 for these BNAbs remains fairly constant over the course of infection. Here, we demonstrate that viruses isolated early during the course of infection were mostly s...

journal_title：Virology

authors： Bunnik EM,van Gils MJ,Lobbrecht MS,Pisas L,van Nuenen AC,Schuitemaker H

更新日期：2009-08-01 00:00:00

abstract：:Analyses of reassortant and parental strains of BTV serotypes 3 and 10, in serum neutralization tests, confirmed the major role of outer capsid protein VP2 in determination of virus serotype and its involvement in serum neutralization. However, a reassortant BTV strain (R70), containing protein VP5 derived from BTV 3 ...

journal_title：Virology

authors： Mertens PP,Pedley S,Cowley J,Burroughs JN,Corteyn AH,Jeggo MH,Jennings DM,Gorman BM

更新日期：1989-06-01 00:00:00

abstract：:The N-terminal domains of the NS1 protein of influenza B virus (NS1B protein) and the NS1 protein of influenza A virus (NS1A protein) share one function: binding double-stranded RNA (dsRNA). Here we show that the N-terminal domain of the NS1B protein possesses an additional function that is not shared by its NS1A coun...

journal_title：Virology

authors： Yuan W,Aramini JM,Montelione GT,Krug RM

更新日期：2002-12-20 00:00:00

abstract：:To determine the role of piscine anti-viral cytotoxic cells, we analyzed the response of channel catfish to Ictalurid herpesvirus 1, commonly designated channel catfish virus (CCV). Peripheral blood leukocytes (PBL) from catfish immunized with MHC-matched, CCV-infected G14D cells (G14D-CCV) showed marked lysis of G14D...

journal_title：Virology

authors： Taylor EB,Chinchar VG,Quiniou SMA,Wilson M,Bengtén E

更新日期：2020-01-15 00:00:00

abstract：:Puumala (PUUV) and Hantaan (HTNV) viruses are hantaviruses within the family Bunyaviridae and associated with Hemorrhagic Fever with Renal Syndrome (HFRS) in humans. Little is known about how these viruses interact with host cells, though pathogenic hantaviruses interact with α(v)β(3) integrin. To study host cell inte...

journal_title：Virology

authors： Higa MM,Petersen J,Hooper J,Doms RW

更新日期：2012-02-20 00:00:00

abstract：:The early steps of Rous sarcoma virus-Bryan strain (BS-RSV) infection of genetically resistant and susceptible chick embryo cells were investigated. The methods used were the uptake of virus by cells grown in monolayer, and the ability of infected cells to form foci of transformed cells after plating on resistant and ...

journal_title：Virology

authors： Piraino F

更新日期：1967-08-01 00:00:00

abstract：:The nucleotide sequence was determined of a 1.6-kb restriction fragment containing the polyhedrin gene of the multicapsid nuclear polyhedrosis virus of Orgyia pseudotsugata (OpMNPV). In addition, both the 5' and 3' termini of the polyhedrin mRNA were located in the flanking sequences using S1 mapping procedures. 5' Le...

journal_title：Virology

authors： Leisy D,Rohrmann G,Beaudreau G

更新日期：1986-09-01 00:00:00

abstract：:In vivo infection with human immunodeficiency virus type 1 (HIV-1) leads to gradual depletion of CD4+ T lymphocytes from the peripheral blood and later from the lymphoid organs. The mechanism of CD4 cell depletion is not known. HIV can only replicate in dividing lymphocytes, but greater than 98% of the lymphocytes in ...

journal_title：Virology

authors： Wang L,Robb CW,Cloyd MW

更新日期：1997-02-17 00:00:00

abstract：:The pregenomic RNA (pgRNA) of hepadnaviruses serves a dual role: as mRNA for the core (C) and polymerase (P) synthesis and as an RNA template for viral genome replication. A question arises as to how these two roles are regulated. We hypothesized that the P protein could suppress translation of the pgRNA via its inter...

journal_title：Virology

authors： Ryu DK,Kim S,Ryu WS

更新日期：2008-03-30 00:00:00

abstract：:The requirement for the herpes simplex virus type 1 (HSV-1) protein Vmw65 (VP16) for activation of immediate early (IE) gene expression was examined in synchronized HeLa cells. Analyses of IE RNA levels were conducted during infection with a viral Vmw65 mutant, in1814. The results revealed an increased requirement for...

journal_title：Virology

authors： Daksis JI,Preston CM

更新日期：1992-07-01 00:00:00

abstract：:Measles virus infection causes a profound immunosuppression. The basis for this immunosuppression is not known. This immunosuppression could be due to virus acting directly on lymphoid cells, the production of an immunosuppressive viral product, or a lymphoid product. We have developed an antigen-specific T cell syste...

journal_title：Virology

authors： Sun X,Burns JB,Howell JM,Fujinami RS

更新日期：1998-06-20 00:00:00

abstract：:Expression of alphavirus glycoproteins on the surface of infected cells leads to cell fusion after exposure to acidic pH. Two strains of Sindbis virus, AR339 (SV) and neuroadapted Sindbis virus (NSV), which differ in virulence for weanling mice, were found to differ in pH-dependent fusion. BHK-21 cells infected with S...

journal_title：Virology

authors： Boggs WM,Hahn CS,Strauss EG,Strauss JH,Griffin DE

更新日期：1989-04-01 00:00:00

abstract：:CD8(+) T-lymphocytes from HIV-1 infected individuals express unidentified factors that suppress viral replication by inhibiting HIV-1 gene expression. We examined the role of epigenetics in modulating the HIV-1 suppressive factors expressed by primary CD8(+) T cells from subjects naturally controlling virus replicatio...

journal_title：Virology

authors： Saunders KO,Freel SA,Overman RG,Cunningham CK,Tomaras GD

更新日期：2010-09-15 00:00:00

abstract：:Why some viruses establish chronic infections while others do not is poorly understood. One possibility is that the host's immune response is impaired during chronic infections and is unable to clear the virus from the host. In this report, we use a recently proposed framework to estimate the per capita killing effica...

journal_title：Virology

authors： Ganusov VV,Lukacher AE,Byers AM

更新日期：2010-09-15 00:00:00

abstract：:Dengue virus (DENV) and West Nile virus (WNV) are members of the Flavivirus genus of positive-strand RNA viruses. RNA sequences and structures, primarily in the untranslated regions, have been shown to modulate flaviviral gene expression and genome replication. Previously, we demonstrated that a structure in the DENV ...

journal_title：Virology

authors： Clyde K,Barrera J,Harris E

更新日期：2008-09-30 00:00:00

abstract：:The simian parainfluenza virus 5 (SV5) V/P gene encodes two proteins: V and the phosphoprotein P. The V and P proteins are amino coterminal for 164 residues, but they have unique carboxyl termini. The unique carboxyl terminus of V contains seven cysteine residues, resembles a zinc finger, and binds two atoms of zinc. ...

journal_title：Virology

authors： Lin GY,Paterson RG,Richardson CD,Lamb RA

更新日期：1998-09-15 00:00:00

abstract：:We have analyzed the limiting factors involved in the induction of human immunodeficiency virus type 1 (HIV-1) provirus expression by tumor necrosis factor-alpha (TNF-alpha), phorbol-12-myristate-13-acetate (PMA), and bryostatin-1 in T-cells (ACH-2) and monocytes (U1). We have demonstrated that, while there is a corre...

journal_title：Virology

authors： Vlach J,Pitha PM

更新日期：1992-03-01 00:00:00